<?php
/**
 * 2007-2017 PrestaShop
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to http://www.prestashop.com for more information.
 *
 * @author    PrestaShop SA <contact@prestashop.com>
 * @copyright 2007-2017 PrestaShop SA
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * International Registered Trademark & Property of PrestaShop SA
 */

function drop_column_from_product_lang_if_exists()
{
    $columns = Db::getInstance()->executeS('SHOW COLUMNS FROM `' . _DB_PREFIX_ . 'product_lang` 
        WHERE Field IN (\'social_sharing_title\', \'social_sharing_description\')');

    if (!empty($columns)) {
        foreach ($columns as $column) {
            Db::getInstance()->execute('ALTER TABLE `' . _DB_PREFIX_ . 'product_lang` DROP COLUMN `' . $column['Field'] . '`');
        }
    }
}
